상세정보
학술지
A 22GHz Cascode CMOS VCO Using Frequency Doubler
- 발행일
- 200711
- 출처
- Microwave and Optical Technology Letters, v.49 no.11, pp.2870-2873
- ISSN
- 0895-2477
- 출판사
- John Wiley & Sons
- 협약과제
- 07MH1700, 초고속 멀티미디어 전송 UWB 솔루션 개발, 최상성
- 초록
- This paper presents a fully integrated cascode CMOS LC VCO using frequency doubler for oscillating at 22 GHz band. A symmetrical cascode coupling topology is implemented with negative conductance scheme for increasing the quality factor and output swing. Therefore, this architecture improves the phase noise characteristic in 0.18 μm CMOS technology. In order to oscillate at 22 GHz band the frequency doubler (clipper) is used. The measured phase noise is -102.4 dBc/Hz at the I MHz offset frequency. The tuning range of 1.32 GHz is obtained with the control voltage from 0.5 to 1.6 V. The current consumption of the VCO and the frequency doubler has 11.8 mA from 1.8 V supply. © 2007 Wiley Periodicals, Inc.
- KSP 제안 키워드
- CMOS Technology, CMOS VCO, Cascode CMOS, Coupling topology, Current consumption, Frequency doubler, Fully integrated, GHz band, LC voltage controlled oscillator(LC-VCO), Noise characteristics, Output swing